Every morning, a shy man finds himself staring at the bespectacled beauty reading quietly at the end of the train. After learning that she works at a library, he visits her and is unexpectedly seduced. Beneath her modest clothes and intelligent appearance is a dominant woman aroused by embarrassing awkward submissive men. She takes complete control and toys with him on the train, in the library, and inside a private restroom, turning his quiet crush into an enviably filthy fantasy.